Registration Key

Hi all,
I just recently re-installed Windows and I had back-ups of most of my hard drive, so I copied it from my storage location back onto my hard drive and I tried to open up my Avast! and it told me I had to register so I requested my key to be sent to my email, but when I entered it in the box, I was told it was and invalid key.

What should I do?

Thanks for your help

See the tutorial: http://www.avast.com/files/tutorials/insert_key.htm
Check you system time and date also.
This is an antipiracy feature of avast that recognizes a clone drive restored.

I have the same problem and I can’t read the link given as solution… Is there another way I can be able to register again with my password?

Make sure that you don’t have any extra spaces at the end of your license key when you using copy’n’paste

Please, post the last 300-350 lines of avast log: C:\Program Files\Alwil Software\Avast4\DATA\log\Setup.log